Photo: Eric Knight, CC BY 4.0, via iNaturalist
Hymenasplenium obscurum
(Blume) Tagawa
—
Height in the aquarium
low to high
Light
low
CO₂ needs
20–25 °C
Ideal temperature
Water parameters
Understand these values- Position
- on hardscape
- Propagation
- plantlets on the leaves, rhizome division, separating offshoots
- Grows emersed
- yes
In the wild
Overview
This fern circulated in the hobby under the wrong name Crepidomanes auriculatum. Its identification was clarified thanks to adult plants grown out of water. Also called Asplenium obscurum, it belongs to a different lineage from the small ferns sometimes sold under a similar name.
- Scientific name
- Hymenasplenium obscurum (Blume) Tagawa
- Classification
- Polypodiales › Aspleniaceae
- IUCN Red List
- Not evaluated (NE)
Natural habitat
East Africa, Madagascar region, South Asia, Southeast Asia, East Asia
Observations (GBIF) and localities Native countries Rivers and lakes
- Native countries
- Introduced by people
No introduction reported outside its native range.
Countries: Kew World Checklist of Vascular Plants (WCVP). Dots: GBIF observations in the native countries.
In the aquarium
Growing in the aquarium
The profile lists it among epiphytes: attach it to the decor and expect very slow growth. Dividing the rhizome lets you propagate it. Detailed growing reports remain limited in the description consulted; check the plant's identity and watch how it takes before expecting it to behave like a Bolbitis or a true Crepidomanes.
Sources:Flowgrow GBIF POWO (Kew) Flowgrow — description allemande · Base map: Natural Earth